1
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Capuano A, D’Urso G, Gazzillo E, Lauro G, Chini MG, D’Auria MV, Ferraro MG, Iazzetti F, Irace C, Bifulco G, Casapullo A. Fatty Acid Synthase as Interacting Anticancer Target of the Terpenoid Myrianthic Acid Disclosed by MS-Based Proteomics Approaches. Int J Mol Sci 2024; 25:5918. [PMID: 38892106 PMCID: PMC11172900 DOI: 10.3390/ijms25115918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/23/2024] [Accepted: 05/25/2024] [Indexed: 06/21/2024] Open
Abstract
This research focuses on the target deconvolution of the natural compound myrianthic acid, a triterpenoid characterized by an ursane skeleton isolated from the roots of Myrianthus arboreus and from Oenothera maritima Nutt. (Onagraceae), using MS-based chemical proteomic techniques. Application of drug affinity responsive target stability (DARTS) and targeted-limited proteolysis coupled to mass spectrometry (t-LiP-MS) led to the identification of the enzyme fatty acid synthase (FAS) as an interesting macromolecular counterpart of myrianthic acid. This result, confirmed by comparison with the natural ursolic acid, was thoroughly investigated and validated in silico by molecular docking, which gave a precise picture of the interactions in the MA/FAS complex. Moreover, biological assays showcased the inhibitory activity of myrianthic acid against the FAS enzyme, most likely related to its antiproliferative activity towards tumor cells. Given the significance of FAS in specific pathologies, especially cancer, the myrianthic acid structural moieties could serve as a promising reference point to start the potential development of innovative approaches in therapy.
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Affiliation(s)
- Alessandra Capuano
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (A.C.); (E.G.); (G.L.); (G.B.); (A.C.)
- PhD Program in Drug Discovery and Development, Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy
| | - Gilda D’Urso
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (A.C.); (E.G.); (G.L.); (G.B.); (A.C.)
| | - Erica Gazzillo
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (A.C.); (E.G.); (G.L.); (G.B.); (A.C.)
- PhD Program in Drug Discovery and Development, Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy
| | - Gianluigi Lauro
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (A.C.); (E.G.); (G.L.); (G.B.); (A.C.)
| | - Maria Giovanna Chini
- Department of Biosciences and Territory, University of Molise, C.da Fonte Lappone, 86090 Pesche, Italy
| | - Maria Valeria D’Auria
- Department of Pharmacy, University of Naples “Federico II”, Via Domenico Montesano 49, 80131 Naples, Italy;
| | - Maria Grazia Ferraro
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy;
| | - Federica Iazzetti
- Biochem Lab, Department of Pharmacy, School of Medicine and Surgery, University of Naples “Federico II”, Via Domenico Montesano 49, 80131 Naples, Italy; (F.I.); (C.I.)
| | - Carlo Irace
- Biochem Lab, Department of Pharmacy, School of Medicine and Surgery, University of Naples “Federico II”, Via Domenico Montesano 49, 80131 Naples, Italy; (F.I.); (C.I.)
| | - Giuseppe Bifulco
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (A.C.); (E.G.); (G.L.); (G.B.); (A.C.)
| | - Agostino Casapullo
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (A.C.); (E.G.); (G.L.); (G.B.); (A.C.)
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2
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Nguyen-Thi PT, Vo TK, Pham THT, Nguyen TT, Van Vo G. Natural flavonoids as potential therapeutics in the management of Alzheimer's disease: a review. 3 Biotech 2024; 14:68. [PMID: 38357675 PMCID: PMC10861420 DOI: 10.1007/s13205-024-03925-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/05/2024] [Indexed: 02/16/2024] Open
Abstract
Alzheimer's disease (AD) is an age-dependent neurodegenerative disorder which is associated with the accumulation of proteotoxic Aβ peptides, and pathologically characterized by the deposition of Aβ-enriched plaques and neurofibrillary tangles. Given the social and economic burden caused by the rising frequency of AD, there is an urgent need for the development of appropriate therapeutics. Natural compounds are gaining popularity as alternatives to synthetic drugs due to their neuroprotective properties and higher biocompatibility. While natural compound's therapeutic effects for AD have been recently investigated in numerous in vitro and in vivo studies, only few have developed to clinical trials. The present review aims to provide a brief overview of the therapeutic effects, new insights, and upcoming perspectives of the preclinical and clinical trials of flavonoids for the treatment of Alzheimer's disease.
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Affiliation(s)
| | - Tuong Kha Vo
- Department of Sports Medicine, Faculty of Medicine, VNU University of Medicine and Pharmacy, Vietnam National University, Hanoi, 100000 Vietnam
| | - Thi Hong Trang Pham
- Institute for Global Health Innovations, Duy Tan University, Da Nang, 550000 Vietnam
- Faculty of Pharmacy, Duy Tan University, Da Nang, 550000 Vietnam
| | - Thuy Trang Nguyen
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, 71420 Vietnam
| | - Giau Van Vo
- Department of Biomedical Engineering, School of Medicine, Vietnam National University – Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, 700000 Vietnam
- Research Center for Genetics and Reproductive Health (CGRH), School of Medicine, Vietnam National University, Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, 70000 Vietnam
- Vietnam National University – Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, 700000 Vietnam
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3
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Liao W, Du H, Chen M, Xiong Y, Zhou H, Qin T, Liu B. Sequential regioselective arylation of pyrazolones with diaryliodonium salts. Org Biomol Chem 2024; 22:708-713. [PMID: 38165289 DOI: 10.1039/d3ob01854g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
The introduction of aromatic substituents into organic compounds significantly alters their physical and chemical characteristics. Yet, achieving precise control over the site-selectivity of arylation continues to pose a considerable challenge. We present here a controllable method for the site-selective mono-, di-, and triarylation of pyrazolone with diaryliodonium salts. The method showcases robustness, flexibility, and excellent compatibility with a broad range of functional groups. It enables control over both the site of arylation and the number of aryl additions. Specifically, three of the four substitutable positions in pyrazolone can be selectively arylated, effectively producing four products under controlled conditions. Additionally, the method supports one-pot sequential arylation, leading to an array of products with diverse aromatic substituents. Control experiments revealed the specific conditions of each reaction step.
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Affiliation(s)
- Wenbo Liao
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, PR China.
| | - Hairui Du
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, PR China.
| | - Mingxiu Chen
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, PR China.
| | - Yan Xiong
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, PR China.
| | - Heye Zhou
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, PR China.
| | - Tao Qin
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, PR China.
| | - Bin Liu
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, PR China.
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4
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Lavilla-Puerta M, Latter R, Bellè F, Cervelli T, Galli A, Perata P, Chini A, Flashman E, Giuntoli B. Identification of novel plant cysteine oxidase inhibitors from a yeast chemical genetic screen. J Biol Chem 2023; 299:105366. [PMID: 37863264 PMCID: PMC10692734 DOI: 10.1016/j.jbc.2023.105366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/28/2023] [Accepted: 10/11/2023] [Indexed: 10/22/2023] Open
Abstract
Hypoxic responses in plants involve Plant Cysteine Oxidases (PCOs). They catalyze the N-terminal cysteine oxidation of Ethylene Response Factors VII (ERF-VII) in an oxygen-dependent manner, leading to their degradation via the cysteine N-degron pathway (Cys-NDP) in normoxia. In hypoxia, PCO activity drops, leading to the stabilization of ERF-VIIs and subsequent hypoxic gene upregulation. Thus far, no chemicals have been described to specifically inhibit PCO enzymes. In this work, we devised an in vivo pipeline to discover Cys-NDP effector molecules. Budding yeast expressing AtPCO4 and plant-based ERF-VII reporters was deployed to screen a library of natural-like chemical scaffolds and was further combined with an Arabidopsis Cys-NDP reporter line. This strategy allowed us to identify three PCO inhibitors, two of which were shown to affect PCO activity in vitro. Application of these molecules to Arabidopsis seedlings led to an increase in ERF-VII stability, induction of anaerobic gene expression, and improvement of tolerance to anoxia. By combining a high-throughput heterologous platform and the plant model Arabidopsis, our synthetic pipeline provides a versatile system to study how the Cys-NDP is modulated. Its first application here led to the discovery of at least two hypoxia-mimicking molecules with the potential to impact plant tolerance to low oxygen stress.
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Affiliation(s)
| | - Rebecca Latter
- Department of Chemistry, University of Oxford, Oxford, UK
| | | | | | | | | | - Andrea Chini
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnología, CSIC, Madrid, Spain
| | | | - Beatrice Giuntoli
- Plantlab, Center of Plant Sciences, Scuola Superiore Sant'Anna, Pisa, Italy; Biology Department, University of Pisa, Pisa, Italy.
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Guimarães NSS, Ramos VS, Prado-Souza LFL, Lopes RM, Arini GS, Feitosa LGP, Silva RR, Nantes IL, Damasceno DC, Lopes NP, Rodrigues T. Rosemary (Rosmarinus officinalis L.) Glycolic Extract Protects Liver Mitochondria from Oxidative Damage and Prevents Acetaminophen-Induced Hepatotoxicity. Antioxidants (Basel) 2023; 12:antiox12030628. [PMID: 36978874 PMCID: PMC10045355 DOI: 10.3390/antiox12030628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
Rosmarinus officinalis L. (rosemary) is an aromatic culinary herb. Native to the Mediterranean region, it is currently cultivated worldwide. In addition to its use as a condiment in food preparation and in teas, rosemary has been widely employed in folk medicine and cosmetics. Several beneficial effects have been described for rosemary, including antimicrobial and antioxidant activities. Here, we investigated the mechanisms accounting for the antioxidant activity of the glycolic extract of R. officinalis (Ro) in isolated rat liver mitochondria (RLM) under oxidative stress conditions. We also investigated its protective effect against acetaminophen-induced hepatotoxicity in vivo. A crude extract was obtained by fractionated percolation, using propylene glycol as a solvent due to its polarity and cosmeceutical compatibility. The quantification of substances with recognized antioxidant action revealed the presence of phenols and flavonoids. Dereplication studies carried out through LC-MS/MS and GC-MS, supported by The Global Natural Product Social Molecular Networking (GNPS) platform, annotated several phenolic compounds, confirming the previous observation. In accordance, Ro decreased the production of reactive oxygen species (ROS) elicited by Fe2+ or t-BOOH and inhibited the lipid peroxidation of mitochondrial membranes in a concentration-dependent manner in RLM. Such an effect was also observed in liposomes as membrane models. Ro also prevented the oxidation of mitochondrial protein thiol groups and reduced glutathione (GSH). In model systems, Ro exhibited a potent scavenger activity toward 2,2′-diphenyl-1-picrylhydrazyl (DPPH) radicals and superoxide anions. It also demonstrated an Fe2+ chelating activity. Moreover, Ro did not exhibit cytotoxicity or dissipate the mitochondrial membrane potential (∆Ψ) in rat liver fibroblasts (BRL3A cells). To evaluate whether such antioxidant protective activity observed in vitro could also be achieved in vivo, a well-established model of hepatotoxicity induced by acute exposure to acetaminophen (AAP) was used. This model depletes GSH and promotes oxidative-stress-mediated tissue damage. The treatment of rats with 0.05% Ro, administered intraperitoneally for four days, resulted in inhibition of AAP-induced lipid peroxidation of the liver and the prevention of hepatotoxicity, maintaining alanine and aspartate aminotransferase (ALT/AST) levels equal to those of the normal, non-treated rats. Together, these findings highlight the potent antioxidant activity of rosemary, which is able to protect mitochondria from oxidative damage in vitro, and effects such as the antioxidant and hepatoprotective effects observed in vivo.
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Affiliation(s)
- Natalia S. S. Guimarães
- Interdisciplinary Center of Biochemistry Investigation, University of Mogi das Cruzes (UMC), Mogi das Cruzes CEP 08780-911, SP, Brazil
| | - Vyctória S. Ramos
- Interdisciplinary Center of Biochemistry Investigation, University of Mogi das Cruzes (UMC), Mogi das Cruzes CEP 08780-911, SP, Brazil
| | - Laura F. L. Prado-Souza
- Center for Natural and Human Sciences, Federal University of ABC, Santo André CEP 09210-580, SP, Brazil
| | - Rayssa M. Lopes
- Center for Natural and Human Sciences, Federal University of ABC, Santo André CEP 09210-580, SP, Brazil
| | - Gabriel S. Arini
- NPPNS, Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto CEP 14040-900, SP, Brazil
| | - Luís G. P. Feitosa
- NPPNS, Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto CEP 14040-900, SP, Brazil
| | - Ricardo R. Silva
- NPPNS, Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto CEP 14040-900, SP, Brazil
| | - Iseli L. Nantes
- Center for Natural and Human Sciences, Federal University of ABC, Santo André CEP 09210-580, SP, Brazil
| | - Debora C. Damasceno
- Laboratory of Experimental Research on Gynecology and Obstetrics, Sao Paulo State University (UNESP), Botucatu CEP 18618-687, SP, Brazil
| | - Norberto P. Lopes
- NPPNS, Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto CEP 14040-900, SP, Brazil
| | - Tiago Rodrigues
- Interdisciplinary Center of Biochemistry Investigation, University of Mogi das Cruzes (UMC), Mogi das Cruzes CEP 08780-911, SP, Brazil
- Correspondence: ; Tel.: +55-(11)-4996-8371
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An Efficient Asymmetric Cross-Coupling Reaction in Aqueous Media Mediated by Chiral Chelating Mono Phosphane Atropisomeric Biaryl Ligand. Catalysts 2023. [DOI: 10.3390/catal13020353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
The enantiomerically pure ligand BisNap-Phos was obtained in a straightforward sequence of reactions beginning with inexpensive starting materials under the readily affordable conditions in high overall yield. An asymmetric BisNap-Phos-palladium complex-catalyzed Suzuki–Miyaura coupling leading to axially chiral biaryl compounds was described. The reactions were carried out under mild conditions in aqueous and organic media. A series of atropisomeric biaryls were synthesized with excellent yields and high enantioselectivities (up to 86% ee). The methodology provides an efficient and practical strategy for the synthesis of novel multifunctionalized axially chiral biaryl compounds under mild environmentally friendly and easily affordable conditions.
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7
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Gu J, Peng RK, Guo CL, Zhang M, Yang J, Yan X, Zhou Q, Li H, Wang N, Zhu J, Ouyang Q. Construction of a synthetic methodology-based library and its application in identifying a GIT/PIX protein-protein interaction inhibitor. Nat Commun 2022; 13:7176. [PMID: 36418900 PMCID: PMC9684509 DOI: 10.1038/s41467-022-34598-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 10/24/2022] [Indexed: 11/24/2022] Open
Abstract
In recent years, the flourishing of synthetic methodology studies has provided concise access to numerous molecules with new chemical space. These compounds form a large library with unique scaffolds, but their application in hit discovery is not systematically evaluated. In this work, we establish a synthetic methodology-based compound library (SMBL), integrated with compounds obtained from our synthetic researches, as well as their virtual derivatives in significantly larger scale. We screen the library and identify small-molecule inhibitors to interrupt the protein-protein interaction (PPI) of GIT1/β-Pix complex, an unrevealed target involved in gastric cancer metastasis. The inhibitor 14-5-18 with a spiro[bicyclo[2.2.1]heptane-2,3'-indolin]-2'-one scaffold, considerably retards gastric cancer metastasis in vitro and in vivo. Since the PPI targets are considered undruggable as they are hard to target, the successful application illustrates the structural specificity of SMBL, demonstrating its potential to be utilized as compound source for more challenging targets.
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Affiliation(s)
- Jing Gu
- grid.410570.70000 0004 1760 6682Department of Medicinal Chemistry, College of Pharmacy, Third Military Medical University, 400038 Chongqing, China
| | - Rui-Kun Peng
- grid.410570.70000 0004 1760 6682Department of Medicinal Chemistry, College of Pharmacy, Third Military Medical University, 400038 Chongqing, China
| | - Chun-Ling Guo
- grid.410570.70000 0004 1760 6682Department of Medicinal Chemistry, College of Pharmacy, Third Military Medical University, 400038 Chongqing, China
| | - Meng Zhang
- grid.16821.3c0000 0004 0368 8293Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
| | - Jie Yang
- grid.410570.70000 0004 1760 6682Department of Medicinal Chemistry, College of Pharmacy, Third Military Medical University, 400038 Chongqing, China
| | - Xiao Yan
- grid.410570.70000 0004 1760 6682Department of Medicinal Chemistry, College of Pharmacy, Third Military Medical University, 400038 Chongqing, China
| | - Qian Zhou
- grid.410570.70000 0004 1760 6682Department of Medicinal Chemistry, College of Pharmacy, Third Military Medical University, 400038 Chongqing, China
| | - Hongwei Li
- grid.410570.70000 0004 1760 6682Department of Medicinal Chemistry, College of Pharmacy, Third Military Medical University, 400038 Chongqing, China
| | - Na Wang
- grid.410570.70000 0004 1760 6682Department of Medicinal Chemistry, College of Pharmacy, Third Military Medical University, 400038 Chongqing, China
| | - Jinwei Zhu
- grid.16821.3c0000 0004 0368 8293Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
| | - Qin Ouyang
- grid.410570.70000 0004 1760 6682Department of Medicinal Chemistry, College of Pharmacy, Third Military Medical University, 400038 Chongqing, China
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The Neuroprotection of Verbascoside in Alzheimer’s Disease Mediated through Mitigation of Neuroinflammation via Blocking NF-κB-p65 Signaling. Nutrients 2022; 14:nu14071417. [PMID: 35406030 PMCID: PMC9003273 DOI: 10.3390/nu14071417] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/22/2022] [Accepted: 03/25/2022] [Indexed: 01/30/2023] Open
Abstract
Verbascoside (VB) is a phenylethanoid glycoside extracted from the herbaceous plant Verbascum sinuatum and plays a neuroprotective role in Alzheimer’s disease (AD). The goal of this study was to explore the neuroprotective mechanism of VB. Based on the proteomics analysis, immunohistochemistry, immunofluorescence, Western blot, and ELISA were utilized to explore the neuroprotective mechanism of VB in context of neuroinflammation in APP/PS1 mice, LPS-induced BV2 cells, and/or Aβ1-42-stimulated N2a cells. Proteomic analysis demonstrated that the neuroprotection of VB correlated closely to its anti-inflammatory effect. VB significantly blocked microglia and astrocyte against activation in brains of APP/PS1 mice, suppressed the generation of IL-1β as well as IL-6, and boosted that of IL-4, IL-10 and TGF-β in vivo, which were analogous to results acquired in vitro. Furthermore, VB effectively restrained the phosphorylation of IKKα+β, IκBα, and NF-κB-p65 in APP/PS1 mice; LPS-induced BV2 cells, and Aβ1-42-stimulated N2a cells and lowered the tendency of NF-κB-p65 translocation towards nucleus in vitro. These results demonstrate that the neuroprotective effect of VB correlates to the modulation of neuroinflammation via NF-κB-p65 pathway, making VB as a hopeful candidate drug for the prevention and treatment of AD.
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Saldívar-González FI, Aldas-Bulos VD, Medina-Franco JL, Plisson F. Natural product drug discovery in the artificial intelligence era. Chem Sci 2022; 13:1526-1546. [PMID: 35282622 PMCID: PMC8827052 DOI: 10.1039/d1sc04471k] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 12/10/2021] [Indexed: 12/19/2022] Open
Abstract
Natural products (NPs) are primarily recognized as privileged structures to interact with protein drug targets. Their unique characteristics and structural diversity continue to marvel scientists for developing NP-inspired medicines, even though the pharmaceutical industry has largely given up. High-performance computer hardware, extensive storage, accessible software and affordable online education have democratized the use of artificial intelligence (AI) in many sectors and research areas. The last decades have introduced natural language processing and machine learning algorithms, two subfields of AI, to tackle NP drug discovery challenges and open up opportunities. In this article, we review and discuss the rational applications of AI approaches developed to assist in discovering bioactive NPs and capturing the molecular "patterns" of these privileged structures for combinatorial design or target selectivity.
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Affiliation(s)
- F I Saldívar-González
- DIFACQUIM Research Group, School of Chemistry, Department of Pharmacy, Universidad Nacional Autónoma de México Avenida Universidad 3000 04510 Mexico Mexico
| | - V D Aldas-Bulos
- Unidad de Genómica Avanzada, Laboratorio Nacional de Genómica para la Biodiversidad (Langebio), Centro de Investigación y de Estudios Avanzados del IPN Irapuato Guanajuato Mexico
| | - J L Medina-Franco
- DIFACQUIM Research Group, School of Chemistry, Department of Pharmacy, Universidad Nacional Autónoma de México Avenida Universidad 3000 04510 Mexico Mexico
| | - F Plisson
- CONACYT - Unidad de Genómica Avanzada, Laboratorio Nacional de Genómica para la Biodiversidad (Langebio), Centro de Investigación y de Estudios Avanzados del IPN Irapuato Guanajuato Mexico
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10
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Gao Y, Yang S, She M, Nie J, Huo Y, Chen Q, Li X, Hu XQ. Practical Synthesis of 3-Aryl Anthranils via an Electrophilic Aromatic Substitution Strategy. Chem Sci 2022; 13:2105-2114. [PMID: 35308846 PMCID: PMC8849043 DOI: 10.1039/d1sc06565c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/27/2022] [Indexed: 11/25/2022] Open
Abstract
We report a practical route for the synthesis of valuable 3-aryl anthranils from readily available anthranils and simple arenes by using the classical electrophilic aromatic substitution (EAS) strategy. This transformation goes through an electrophilic substitution and rearomatisation sequence by employing Tf2O as an effective activator. A wide range of arenes were compatible in this transformation, delivering various structurally diversified 3-aryl anthranils in good yields and high regioselectivity. In addition, a variety of readily available feedstocks such as olefins, alkenyl triflates, silyl enolethers, carbonyl compounds, thiophenols and thiols could also participate in the reaction to achieve the C3 alkenylation, alkylation and thioetherification of anthranils. Of note, the synthesized 3-aryl anthranils proved to be a highly robust platform to access a series of biologically active compounds, drug derivatives and organic optoelectronic materials. A practical route for the synthesis of valuable 3-aryl anthranils from readily available anthranils and simple arenes has been achieved through an electrophilic substitution and rearomatization sequence by employing Tf2O as an effective activator.![]()
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Affiliation(s)
- Yang Gao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Simin Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Minwei She
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Jianhong Nie
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Xiao-Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities Wuhan 430074 China
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11
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Liu Y, Mathis C, Bajczyk MD, Marshall SM, Wilbraham L, Cronin L. Exploring and mapping chemical space with molecular assembly trees. SCIENCE ADVANCES 2021; 7:eabj2465. [PMID: 34559562 PMCID: PMC8462901 DOI: 10.1126/sciadv.abj2465] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/03/2021] [Indexed: 06/01/2023]
Abstract
The rule-based search of chemical space can generate an almost infinite number of molecules, but exploration of known molecules as a function of the minimum number of steps needed to build up the target graphs promises to uncover new motifs and transformations. Assembly theory is an approach to compare the intrinsic complexity and properties of molecules by the minimum number of steps needed to build up the target graphs. Here, we apply this approach to prebiotic chemistry, gene sequences, plasticizers, and opiates. This allows us to explore molecules connected to the assembly tree, rather than the entire space of molecules possible. Last, by developing a reassembly method, based on assembly trees, we found that in the case of the opiates, a new set of drug candidates could be generated that would not be accessible via conventional fragment-based drug design, thereby demonstrating how this approach might find application in drug discovery.
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Affiliation(s)
- Yu Liu
- School of Chemistry, University of Glasgow, University Avenue,
Glasgow G12 8QQ, UK
| | - Cole Mathis
- School of Chemistry, University of Glasgow, University Avenue,
Glasgow G12 8QQ, UK
| | | | - Stuart M. Marshall
- School of Chemistry, University of Glasgow, University Avenue,
Glasgow G12 8QQ, UK
| | - Liam Wilbraham
- School of Chemistry, University of Glasgow, University Avenue,
Glasgow G12 8QQ, UK
| | - Leroy Cronin
- School of Chemistry, University of Glasgow, University Avenue,
Glasgow G12 8QQ, UK
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12
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Abstract
Transition metal-catalyzed cross-electrophile coupling (XEC) is a powerful tool for forging C(sp2)-C(sp2) bonds in biaryl molecules from abundant aromatic halides. While syntheses of unsymmetrical biaryl compounds through multimetallic XEC is of high synthetic value, selective XEC of two heteroaromatic halides remains elusive and challenging. Herein we report a homogeneous XEC method which relies on a zirconaaziridine complex as a shuttle for dual palladium catalyzed processes. The zirconaaziridine-mediated palladium (ZAPd) catalyzed reaction shows excellent compatibility with various functional groups and diverse heteroaromatic scaffolds. In accord with density functional theory (DFT) calculations, a redox-transmetallation between the oxidative addition product and the zirconaaziridine is proposed as the crucial elementary step. Thus, cross-coupling selectivity using a single transition metal catalyst is controlled by the relative rate of oxidative addition of Pd(0) into the aromatic halide. Overall, the concept of a combined reducing and transmetallating agent offers opportunities for development of transition-metal reductive coupling catalysis.
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13
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Zhao B, Rogge T, Ackermann L, Shi Z. Metal-catalysed C-Het (F, O, S, N) and C-C bond arylation. Chem Soc Rev 2021; 50:8903-8953. [PMID: 34190223 DOI: 10.1039/c9cs00571d] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The formation of C-aryl bonds has been the focus of intensive research over the last decades for the construction of complex molecules from simple, readily available feedstocks. Traditionally, these strategies involve the coupling of organohalides (I, Br, Cl) with organometallic reagents (Mg, Zn, B, Si, Sn,…) such as Kumada-Corriu, Negishi, Suzuki-Miyaura, Hiyama and Sonogashira cross-couplings. More recently, alternative methods have provided access to these products by reactions with less reactive C-Het (F, O, S, N) and C-C bonds. Compared to traditional methods, the direct cleavage and arylation of these chemical bonds, the essential link in accessible feedstocks, has become increasingly important from the viewpoint of step-economy and functional-group compatibility. This comprehensive review aims to outline the development and advances of this topic, which was organized into (1) C-F bond arylation, (2) C-O bond arylation, (3) C-S bond arylation, (4) C-N bond arylation, and (5) C-C bond arylation. Substantial attention has been paid to the strategies and mechanistic investigations. We hope that this review can trigger chemists to discover more efficient methodologies to access arylation products by cleavage of these C-Het and C-C bonds.
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Affiliation(s)
- Binlin Zhao
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
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14
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Gao Y, Yang S, Huo Y, Chen Q, Li X, Hu XQ. NiH-Catalyzed Hydroamination/Cyclization Cascade: Rapid Access to Quinolines. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02055] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yang Gao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Simin Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiao-Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
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15
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Oh SM, Shin S. Synthesis of
N
‐Hydroxyindole Derivatives via Pd‐Catalyzed Electrophilic Cyclization. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Soo Min Oh
- Department of Chemistry Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS), Hanyang University Seoul 04763 South Korea
| | - Seunghoon Shin
- Department of Chemistry Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS), Hanyang University Seoul 04763 South Korea
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16
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Laborda P, Alcalde-Rico M, Chini A, Martínez JL, Hernando-Amado S. Discovery of inhibitors of Pseudomonas aeruginosa virulence through the search for natural-like compounds with a dual role as inducers and substrates of efflux pumps. Environ Microbiol 2021; 23:7396-7411. [PMID: 33818002 DOI: 10.1111/1462-2920.15511] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/25/2021] [Accepted: 04/03/2021] [Indexed: 12/26/2022]
Abstract
Multidrug efflux pumps are ancient elements encoded in every genome, from bacteria to humans. In bacteria, in addition to antibiotics, efflux pumps extrude a wide range of substrates, including quorum sensing signals, bacterial metabolites, or plant-produced compounds. This indicates that their original functions may differ from their recently acquired role in the extrusion of antibiotics during human infection. Concerning plant-produced compounds, some of them are substrates and inducers of the same efflux pump, suggesting a coordinated plant/bacteria coevolution. Herein we analyse the ability of 1243 compounds from a Natural Product-Like library to induce the expression of P. aeruginosa mexCD-oprJ or mexAB-oprM efflux pumps' encoding genes. We further characterized natural-like compounds that do not trigger antibiotic resistance in P. aeruginosa and that act as virulence inhibitors, choosing those that were not only inducers but substrates of the same efflux pump. Four compounds impair swarming motility, exotoxin secretion through the Type 3 Secretion System (T3SS) and the ability to kill Caenorhabditis elegans, which might be explained by the downregulation of genes encoding flagellum and T3SS. Our results emphasize the possibility of discovering new anti-virulence drugs by screening natural or natural-like libraries for compounds that behave as both, inducers and substrates of efflux pumps.
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Affiliation(s)
- Pablo Laborda
- Centro Nacional de Biotecnología, CSIC, Darwin 3, Madrid, 28049, Spain
| | - Manuel Alcalde-Rico
- Centro Nacional de Biotecnología, CSIC, Darwin 3, Madrid, 28049, Spain.,Grupo de Resistencia Antimicrobiana en Bacterias Patógenas y Ambientales (GRABPA), Instituto de Biología, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile.,Millennium Nucleus for Collaborative Research on Bacterial Resistance (MICROB-R), Valparaíso, Chile
| | - Andrea Chini
- Centro Nacional de Biotecnología, CSIC, Darwin 3, Madrid, 28049, Spain
| | - José L Martínez
- Centro Nacional de Biotecnología, CSIC, Darwin 3, Madrid, 28049, Spain
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17
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Borah P, Hazarika S, Deka S, Venugopala KN, Nair AB, Attimarad M, Sreeharsha N, Mailavaram RP. Application of Advanced Technologies in Natural Product Research: A Review with Special Emphasis on ADMET Profiling. Curr Drug Metab 2020; 21:751-767. [PMID: 32664837 DOI: 10.2174/1389200221666200714144911] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/12/2020] [Accepted: 06/17/2020] [Indexed: 12/14/2022]
Abstract
The successful conversion of natural products (NPs) into lead compounds and novel pharmacophores has emboldened the researchers to harness the drug discovery process with a lot more enthusiasm. However, forfeit of bioactive NPs resulting from an overabundance of metabolites and their wide dynamic range have created the bottleneck in NP researches. Similarly, the existence of multidimensional challenges, including the evaluation of pharmacokinetics, pharmacodynamics, and safety parameters, has been a concerning issue. Advancement of technology has brought the evolution of traditional natural product researches into the computer-based assessment exhibiting pretentious remarks about their efficiency in drug discovery. The early attention to the quality of the NPs may reduce the attrition rate of drug candidates by parallel assessment of ADMET profiling. This article reviews the status, challenges, opportunities, and integration of advanced technologies in natural product research. Indeed, emphasis will be laid on the current and futuristic direction towards the application of newer technologies in early-stage ADMET profiling of bioactive moieties from the natural sources. It can be expected that combinatorial approaches in ADMET profiling will fortify the natural product-based drug discovery in the near future.
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Affiliation(s)
- Pobitra Borah
- Pratiksha Institute of Pharmaceutical Sciences, Chandrapur Road, Panikhaiti, Guwahati-26, Assam, India
| | - Sangeeta Hazarika
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh-221005, India
| | - Satyendra Deka
- Pratiksha Institute of Pharmaceutical Sciences, Chandrapur Road, Panikhaiti, Guwahati-26, Assam, India
| | - Katharigatta N Venugopala
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa-31982, Saudi Arabia
| | - Anroop B Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa-31982, Saudi Arabia
| | - Mahesh Attimarad
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa-31982, Saudi Arabia
| | - Nagaraja Sreeharsha
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa-31982, Saudi Arabia
| | - Raghu P Mailavaram
- Department of Pharmaceutical Chemistry, Shri Vishnu College of Pharmacy, Vishnupur (Affiliated to Andhra University), Bhimavaram, W.G. Dist., Andhra Pradesh, India
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18
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Kumar R, Bidgood CL, Levrier C, Gunter JH, Nelson CC, Sadowski MC, Davis RA. Synthesis of a Unique Psammaplysin F Library and Functional Evaluation in Prostate Cancer Cells by Multiparametric Quantitative Single Cell Imaging. JOURNAL OF NATURAL PRODUCTS 2020; 83:2357-2366. [PMID: 32691595 DOI: 10.1021/acs.jnatprod.0c00121] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The spirooxepinisoxazoline alkaloid psammaplysin F (1) was selected as a scaffold for the generation of a unique screening library for both drug discovery and chemical biology research. Large-scale extraction and isolation chemistry was performed on a marine sponge (Hyattella sp.) collected from the Great Barrier Reef in order to acquire >200 mg of the desired bromotyrosine-derived alkaloidal scaffold. Parallel solution-phase semisynthesis was employed to generate a series of psammaplysin-based urea (2-9) and amide analogues (10-11) in low to moderate yields. The chemical structures of all analogues were characterized using NMR and MS data. The absolute configuration of psammaplysin F and all semisynthetic analogues was determined as 6R, 7R by comparison of ECD data with literature values. All compounds (1-11) were evaluated for their effect on cell cycle distribution and changes to cancer metabolism in LNCaP prostate cancer cells using a multiparametric quantitative single-cell imaging approach. These investigations identified that in LNCaP cells psammaplysin F and some urea analogues caused loss of mitochondrial membrane potential, fragmentation of the mitochondrial tubular network, chromosome misalignment, and cell cycle arrest in mitosis.
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Affiliation(s)
- Rohitesh Kumar
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
| | - Charles L Bidgood
- Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Claire Levrier
- Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Jennifer H Gunter
- Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Colleen C Nelson
- Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Martin C Sadowski
- Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
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19
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Chakraborty P, Garg N, Manoury E, Poli R, Sundararaju B. C-Alkylation of Various Carbonucleophiles with Secondary Alcohols under CoIII-Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01728] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Priyanka Chakraborty
- Department of Chemistry, Indian Institute of Technology Kanpur, 208016 Kanpur, Uttar Pradesh, India
| | - Nidhi Garg
- Department of Chemistry, Indian Institute of Technology Kanpur, 208016 Kanpur, Uttar Pradesh, India
| | - Eric Manoury
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 Route de Narbonne, F-31077 Toulouse Cedex 4, France
| | - Rinaldo Poli
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 Route de Narbonne, F-31077 Toulouse Cedex 4, France
| | - Basker Sundararaju
- Department of Chemistry, Indian Institute of Technology Kanpur, 208016 Kanpur, Uttar Pradesh, India
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20
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Medina-O'Donnell M, Rivas F, Reyes-Zurita FJ, Cano-Muñoz M, Martinez A, Lupiañez JA, Parra A. Oleanolic Acid Derivatives as Potential Inhibitors of HIV-1 Protease. JOURNAL OF NATURAL PRODUCTS 2019; 82:2886-2896. [PMID: 31617361 DOI: 10.1021/acs.jnatprod.9b00649] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Pentacyclic triterpenes, such as oleanolic acid (I), are promising scaffolds for diversification through the use of combinatorial methods to obtain derivatives that improve their biological properties, increasing their bioavailability and enhancing their therapeutic efficacy. The purpose of this study was to evaluate the influence that derivatives of oleanolic acid, conjugated with one or two amino acids and an acyl group, might exert on HIV-1 protease inhibition. The in vitro studies conducted suggested that the presence of a carboxyacyl group generally improves the inhibition of HIV-1 protease, especially when a phthaloyl group is present, with IC50 concentration values below 5 μM. The gain in activity of three 3-phthaloyl derivatives, with sub-micromolar IC50 values, was between 60- and 100-fold more active than oleanolic acid. A molecular docking study has also been performed to elucidate the mode of binding to the protease by these oleanolic acid derivatives. In general, the derivatives that exhibited the highest inhibitory activity of HIV-1 protease also showed the highest binding energies in docking simulations. The overall results suggest that the coupling of one or two amino acids and a phthaloyl group to oleanolic acid improves HIV-1 protease inhibition, implying that these triterpene derivatives may be promising antiviral agents against HIV.
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21
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Matilla MA, Daddaoua A, Chini A, Morel B, Krell T. An auxin controls bacterial antibiotics production. Nucleic Acids Res 2019; 46:11229-11238. [PMID: 30500953 PMCID: PMC6265452 DOI: 10.1093/nar/gky766] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 08/21/2018] [Indexed: 01/02/2023] Open
Abstract
The majority of clinically used antibiotics originate from bacteria. As the need for new antibiotics grows, large-scale genome sequencing and mining approaches are being used to identify novel antibiotics. However, this task is hampered by the fact that many antibiotic biosynthetic clusters are not expressed under laboratory conditions. One strategy to overcome this limitation is the identification of signals that activate the expression of silent biosynthetic pathways. Here, we report the use of high-throughput screening to identify signals that control the biosynthesis of the acetyl-CoA carboxylase inhibitor antibiotic andrimid in the broad-range antibiotic-producing rhizobacterium Serratia plymuthica A153. We reveal that the pathway-specific transcriptional activator AdmX recognizes the auxin indole-3-acetic acid (IAA). IAA binding causes conformational changes in AdmX that result in the inhibition of the expression of the andrimid cluster and the suppression of antibiotic production. We also show that IAA synthesis by pathogenic and beneficial plant-associated bacteria inhibits andrimid production in A153. Because IAA is a signalling molecule that is present across all domains of life, this study highlights the importance of intra- and inter-kingdom signalling in the regulation of antibiotic synthesis. Our discovery unravels, for the first time, an IAA-dependent molecular mechanism for the regulation of antibiotic synthesis.
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Affiliation(s)
- Miguel A Matilla
- Department of Environmental Protection, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, 18008 Granada, Spain
| | | | - Andrea Chini
- Department of Plant Molecular Genetics, National Centre for Biotechnology, Consejo Superior de Investigaciones Científicas, 28049 Madrid, Spain
| | - Bertrand Morel
- Departament of Physical Chemistry and Institute for Biotechnology, Science Faculty, Granada University, 18071 Granada, Spain
| | - Tino Krell
- Department of Environmental Protection, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, 18008 Granada, Spain
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22
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Ertl P, Schuhmann T. A Systematic Cheminformatics Analysis of Functional Groups Occurring in Natural Products. JOURNAL OF NATURAL PRODUCTS 2019; 82:1258-1263. [PMID: 30933507 DOI: 10.1021/acs.jnatprod.8b01022] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The two most striking features that discriminate natural products from synthetic molecules are their characteristic scaffolds and unique functional groups (FGs). In this study we systematically investigate the distribution of FGs in natural products from a cheminformatics perspective by comparing FG frequencies in natural products with those found in average synthetic molecules. We thereby aim for the identification of FGs that are characteristic for molecules produced by living organisms. In our analysis we also include information about the natural origins of the structures investigated, allowing us to link the occurrence of specific FGs to the individual producing species. Our findings have the potential for being applied in a medicinal chemistry context concerning the synthesis of natural product-like libraries and natural product-inspired fragment collections. The results may be used also to support compound derivatization strategies and the design of "non-natural" natural products.
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Affiliation(s)
- Peter Ertl
- Novartis Institutes for BioMedical Research , CH-4056 , Basel , Switzerland
| | - Tim Schuhmann
- Novartis Institutes for BioMedical Research , CH-4056 , Basel , Switzerland
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23
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Liu Y, Bergès J, Zaid Y, Chahdi FO, Van Der Lee A, Harakat D, Clot E, Jaroschik F, Taillefer M. Aerobic and Ligand-Free Manganese-Catalyzed Homocoupling of Arenes or Aryl Halides via in Situ Formation of Aryllithiums. J Org Chem 2019; 84:4413-4420. [PMID: 30665303 DOI: 10.1021/acs.joc.8b02834] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Ligand-free manganese-catalyzed homocoupling of arenes or aryl halides can be carried out under aerobic conditions via the in situ formation of the corresponding aryllithiums. A wide range of biaryls and derivatives has been obtained, and a mechanism involving monomeric manganese-oxo complexes has been proposed on the basis of DFT calculations.
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Affiliation(s)
- Yujia Liu
- Institut Charles Gerhardt Montpellier , Université de Montpellier , UMR 5253 CNRS, ENSCM, 8 rue de l'Ecole Normale , Montpellier 34296 , France
| | - Julien Bergès
- Institut Charles Gerhardt Montpellier , Université de Montpellier , UMR 5253 CNRS, ENSCM, 8 rue de l'Ecole Normale , Montpellier 34296 , France
| | - Yassir Zaid
- Institut Charles Gerhardt Montpellier , Université de Montpellier , UMR 5253 CNRS, ENSCM, 8 rue de l'Ecole Normale , Montpellier 34296 , France.,Laboratoire Chimie Organique Appliquée LCOA , Faculté des Sciences et Techniques , Fès 30000 , Morocco
| | - Fouad Ouazzani Chahdi
- Laboratoire Chimie Organique Appliquée LCOA , Faculté des Sciences et Techniques , Fès 30000 , Morocco
| | - Arie Van Der Lee
- Institut Européen des Membranes, ENSCM , Université de Montpellier , UMR 5635 CNRS, Montpellier 34095 , France
| | - Dominique Harakat
- Institut de Chimie Moléculaire de Reims , Université de Reims , UMR 7312 CNRS, BP 1039, Reims 51687 , France
| | - Eric Clot
- Institut Charles Gerhardt Montpellier , Université de Montpellier , UMR 5253 CNRS, ENSCM, 8 rue de l'Ecole Normale , Montpellier 34296 , France
| | - Florian Jaroschik
- Institut Charles Gerhardt Montpellier , Université de Montpellier , UMR 5253 CNRS, ENSCM, 8 rue de l'Ecole Normale , Montpellier 34296 , France
| | - Marc Taillefer
- Institut Charles Gerhardt Montpellier , Université de Montpellier , UMR 5253 CNRS, ENSCM, 8 rue de l'Ecole Normale , Montpellier 34296 , France
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24
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Jabri MA, Marzouki L, Sebai H. Ethnobotanical, phytochemical and therapeutic effects of Myrtus communis L. berries seeds on gastrointestinal tract diseases: a review. Arch Physiol Biochem 2018; 124:390-396. [PMID: 29303617 DOI: 10.1080/13813455.2017.1423504] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Medicinal plants have always had an important place in the therapeutic arsenal of humanity and particularly in the treatment of gastrointestinal tract diseases. Myrtus communis L., known as common myrtle, is native to Southern Europe, North Africa, and Western Asia. The different parts of this plant are used as antiinflammatory, antiulcer, antidiabetic, urinary antiseptic, and to treat the respiratory and digestive systems diseases. For the first time, an exhaustive bibliographic research of the seeds of myrtle berries has been carried out. As a result, it has been found that this plant is very rich in biologically active compounds such as phospholipids, polyunsaturated fatty acids, and phenolic compounds. This has made it effective in the treatment of digestive diseases. In order to emphasize the importance of myrtle berries seeds, this review has been established by discussing its botanical, morphological, phytochemical, ethnomedicinal studies as well as its effect on digestive tract diseases.
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Affiliation(s)
- Mohamed-Amine Jabri
- a Laboratoire de Physiologie Fonctionnelle et Valorisation des Bio-Ressources - Institut Supérieur de Biotechnologie de Béja , Université de Jendouba , Béja , Tunisia
| | - Lamjed Marzouki
- a Laboratoire de Physiologie Fonctionnelle et Valorisation des Bio-Ressources - Institut Supérieur de Biotechnologie de Béja , Université de Jendouba , Béja , Tunisia
| | - Hichem Sebai
- a Laboratoire de Physiologie Fonctionnelle et Valorisation des Bio-Ressources - Institut Supérieur de Biotechnologie de Béja , Université de Jendouba , Béja , Tunisia
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25
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Zhu T, Li Z, Xiao F, Duan WL. Pd-catalyzed oxidative homo-coupling of acrylates and aromatic alkenes for the conjugated diene synthesis. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.06.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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26
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Chen Q, Wu A, Qin S, Zeng M, Le Z, Yan Z, Zhang H. Ni-Catalyzed Decarboxylative Cross-Coupling of Potassium Polyfluorobenzoates with Unactivated Phenol and Phenylmethanol Derivatives. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800729] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Quan Chen
- College of Chemistry; Nanchang University; 999 Xuefu Avenue Nanchang 330031 People's Republic of China
| | - Aizhen Wu
- College of Chemistry; Nanchang University; 999 Xuefu Avenue Nanchang 330031 People's Republic of China
| | - Shengxiang Qin
- College of Chemistry; Nanchang University; 999 Xuefu Avenue Nanchang 330031 People's Republic of China
| | - Meiqi Zeng
- College of Chemistry; Nanchang University; 999 Xuefu Avenue Nanchang 330031 People's Republic of China
| | - Zhiping Le
- College of Chemistry; Nanchang University; 999 Xuefu Avenue Nanchang 330031 People's Republic of China
| | - Zhaohua Yan
- College of Chemistry; Nanchang University; 999 Xuefu Avenue Nanchang 330031 People's Republic of China
| | - Hua Zhang
- College of Chemistry; Nanchang University; 999 Xuefu Avenue Nanchang 330031 People's Republic of China
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27
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Song YX, Du DM. Asymmetric Construction of Bispiro[oxindole-pyrrolidine-rhodanine]s via Squaramide-Catalyzed Domino Michael/Mannich [3 + 2] Cycloaddition of Rhodanine Derivatives with N-(2,2,2-Trifluoroethyl)isatin Ketimines. J Org Chem 2018; 83:9278-9290. [DOI: 10.1021/acs.joc.8b01245] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yong-Xing Song
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Da-Ming Du
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
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28
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He S, Tan G, Luo A, You J. Rhodium-catalyzed oxidative C–H/C–H cross-coupling of aniline with heteroarene: N-nitroso group enabled mild conditions. Chem Commun (Camb) 2018; 54:7794-7797. [DOI: 10.1039/c8cc04027c] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A rhodium(iii)-catalyzed oxidative ortho-heteroarylation of N-nitrosoaniline with heteroarene has been developed for the synthesis of (2-aminophenyl)heteroaryls under mild conditions.
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Affiliation(s)
- Shuang He
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Guangying Tan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Anping Luo
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
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Li G, Lou HX. Strategies to diversify natural products for drug discovery. Med Res Rev 2017; 38:1255-1294. [PMID: 29064108 DOI: 10.1002/med.21474] [Citation(s) in RCA: 162] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 09/18/2017] [Accepted: 09/28/2017] [Indexed: 12/11/2022]
Abstract
Natural product libraries contain specialized metabolites derived from plants, animals, and microorganisms that play a pivotal role in drug discovery due to their immense structural diversity and wide variety of biological activities. The strategies to greatly extend natural product scaffolds through available biological and chemical approaches offer unique opportunities to access a new series of natural product analogues, enabling the construction of diverse natural product-like libraries. The affordability of these structurally diverse molecules has been a crucial step in accelerating drug discovery. This review provides an overview of various approaches to exploit the diversity of compounds for natural product-based drug development, drawing upon a series of examples to illustrate each strategy.
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Affiliation(s)
- Gang Li
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, China
| | - Hong-Xiang Lou
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, China.,Department of Natural Products Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, China
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30
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Convenient one-pot access to novel densely functionalized pyrano[2,3-d][1,3,4]thiadiazolo[3,2-a]pyrimidines via three component reaction. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2904-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Verma K, Kannan K, V S, R S, V K, K R. Exploring β-Tubulin Inhibitors from Plant Origin using Computational Approach. PHYTOCHEMICAL ANALYSIS : PCA 2017; 28:230-241. [PMID: 28008675 DOI: 10.1002/pca.2665] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 10/24/2016] [Accepted: 10/24/2016] [Indexed: 05/28/2023]
Abstract
INTRODUCTION β-Tubulin is an important target for the binding of anti-cancer drugs, in particular, paclitaxel (taxol), vinblastine and epothilone. However, mutations in β-tubulin structure give resistance to chemotherapeutic agents. Notably, mutations at R306C, F270 V, L217R, L228F, A185T and A248V positions in β-tubulin give high resistance for paclitaxel binding. OBJECTIVE To discover novel inhibitors of β-tubulin from natural sources, particularly alkaloids, using a virtual screening approach. METHODOLOGY A virtual screening approach was employed to find potent lead molecules from the Naturally-occurring Plant-based Anti-cancer Compound-activity Target (NPACT) database. Alkaloids have great potential to be anti-cancer agents. Therefore, we have screened all alkaloids from a total of 1574 molecules from the NPACT database for our study. Initially, Molinspiration and DataWarrior programs were utilised to calculate pharmacokinetics and toxicity risks of the alkaloids, respectively. Subsequently, AutoDock algorithm was employed to understand the binding efficiency of alkaloids against β-tubulin. The binding affinity of the docked complex was confirmed by means of an intermolecular interaction study. Moreover, oral toxicity was predicted by using ProTox program. Further, metabolising capacity of drugs was studied by using SmartCYP software. Additionally, scaffold analysis was done with the help of scaffold trees and dendrograms, providing knowledge about the building blocks for parent-compound synthesis. RESULTS Overall, the results of our computational analysis indicate that isostrychnine, obtained from Strychnosnux-vomica, satisfies pharmacokinetic and bioavailability properties, binds efficiently with β-tubulin. Thus, it could be a promising lead for the treatment of paclitaxel resistant cancer types. CONCLUSION This is the first observation of inhibitory activity of isostrychnine against β-tubulin and warrants further experimental investigation. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Kanika Verma
- Department of Biotechnology, School of Bio Sciences and Technology, VIT University, Vellore, 632014, Tamil Nadu, India
| | - Kaavya Kannan
- Department of Biotechnology, School of Bio Sciences and Technology, VIT University, Vellore, 632014, Tamil Nadu, India
| | - Shanthi V
- Department of Biotechnology, School of Bio Sciences and Technology, VIT University, Vellore, 632014, Tamil Nadu, India
| | - Sethumadhavan R
- Department of Biotechnology, School of Bio Sciences and Technology, VIT University, Vellore, 632014, Tamil Nadu, India
| | - Karthick V
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong
| | - Ramanathan K
- Department of Biotechnology, School of Bio Sciences and Technology, VIT University, Vellore, 632014, Tamil Nadu, India
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Abstract
Transition metal-mediated C-H bond activation and functionalization represent one of the most straightforward and powerful tools in modern organic synthetic chemistry. Bi(hetero)aryls are privileged π-conjugated structural cores in biologically active molecules, organic functional materials, ligands, and organic synthetic intermediates. The oxidative C-H/C-H coupling reactions between two (hetero)arenes through 2-fold C-H activation offer a valuable opportunity for rapid assembly of diverse bi(hetero)aryls and further exploitation of their applications in pharmaceutical and material sciences. This review provides a comprehensive overview of the fundamentals and applications of transition metal-mediated/catalyzed oxidative C-H/C-H coupling reactions between two (hetero)arenes. The substrate scope, limitation, reaction mechanism, regioselectivity, and chemoselectivity, as well as related control strategies of these reactions are discussed. Additionally, the applications of these established methods in the synthesis of natural products and exploitation of new organic functional materials are exemplified. In the last section, a short introduction on oxidant- or Lewis acid-mediated oxidative Ar-H/Ar-H coupling reactions is presented, considering that it is a very powerful method for the construction of biaryl units and polycylic arenes.
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Affiliation(s)
- Yudong Yang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Jingbo Lan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
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Yu X, Che Z, Xu H. Recent Advances in the Chemistry and Biology of Podophyllotoxins. Chemistry 2017; 23:4467-4526. [PMID: 27726183 DOI: 10.1002/chem.201602472] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Indexed: 01/17/2023]
Abstract
Podophyllotoxin and its related aryltetralin cyclolignans belong to a family of important products that exhibit various biological properties (e.g., cytotoxic, insecticidal, antifungal, antiviral, anti-inflammatory, neurotoxic, immunosuppressive, antirheumatic, antioxidative, antispasmogenic, and hypolipidemic activities). This Review provides a survey of podophyllotoxin and its analogues isolated from plants. In particular, recent developments in the elegant total chemical synthesis, structural modifications, biosynthesis, and biotransformation of podophyllotoxin and its analogues are summarized. Moreover, a deoxypodophyllotoxin-based chemosensor for selective detection of mercury ion is described. In addition to the most active podophyllotoxin derivatives in each series against human cancer cell lines and insect pests listed in the tables, the structure-activity relationships of podophyllotoxin derivatives as cytotoxic and insecticidal agents are also outlined. Future prospects and further developments in this area are covered at the end of the Review. We believe that this Review will provide necessary information for synthetic, medicinal, and pesticidal chemistry researchers who are interested in the chemistry and biology of podophyllotoxins.
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Affiliation(s)
- Xiang Yu
- Research Institute of Pesticidal Design and Synthesis, College of Plant Protection/Sciences, Northwest A&F University, Yangling, 712100, Shaanxi Province, P.R. China
| | - Zhiping Che
- Research Institute of Pesticidal Design and Synthesis, College of Plant Protection/Sciences, Northwest A&F University, Yangling, 712100, Shaanxi Province, P.R. China
- College of Forestry, Henan University of Science and Technology, Luoyang, 471003, Henan Province, P. R. China
| | - Hui Xu
- Research Institute of Pesticidal Design and Synthesis, College of Plant Protection/Sciences, Northwest A&F University, Yangling, 712100, Shaanxi Province, P.R. China
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Demchuk OM, Kapłon K, Mazur L, Strzelecka D, Pietrusiewicz KM. Readily available catalysts for demanding Suzuki–Miyaura couplings under mild conditions. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.08.087] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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35
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Spallarossa M, Banfi L, Basso A, Moni L, Riva R. Access to Polycyclic Alkaloid-Like Structures by Coupling the Passerini and Ugi Reactions with Two Sequential Metal-Catalyzed Cyclizations. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600638] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Martina Spallarossa
- Department of Chemistry and Industrial Chemistry; University of Genova; via Dodecaneso 31 I-16146 Genova Italy
| | - Luca Banfi
- Department of Chemistry and Industrial Chemistry; University of Genova; via Dodecaneso 31 I-16146 Genova Italy
| | - Andrea Basso
- Department of Chemistry and Industrial Chemistry; University of Genova; via Dodecaneso 31 I-16146 Genova Italy
| | - Lisa Moni
- Department of Chemistry and Industrial Chemistry; University of Genova; via Dodecaneso 31 I-16146 Genova Italy
| | - Renata Riva
- Department of Chemistry and Industrial Chemistry; University of Genova; via Dodecaneso 31 I-16146 Genova Italy
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36
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Exploration of Scaffolds from Natural Products with Antiplasmodial Activities, Currently Registered Antimalarial Drugs and Public Malarial Screen Data. Molecules 2016; 21:104. [PMID: 26784165 PMCID: PMC6273396 DOI: 10.3390/molecules21010104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 01/06/2016] [Accepted: 01/12/2016] [Indexed: 01/07/2023] Open
Abstract
In light of current resistance to antimalarial drugs, there is a need to discover new classes of antimalarial agents with unique mechanisms of action. Identification of unique scaffolds from natural products with in vitro antiplasmodial activities may be the starting point for such new classes of antimalarial agents. We therefore conducted scaffold diversity and comparison analysis of natural products with in vitro antiplasmodial activities (NAA), currently registered antimalarial drugs (CRAD) and malaria screen data from Medicine for Malaria Ventures (MMV). The scaffold diversity analyses on the three datasets were performed using scaffold counts and cumulative scaffold frequency plots. Scaffolds from the NAA were compared to those from CRAD and MMV. A Scaffold Tree was also generated for each of the datasets and the scaffold diversity of NAA was found to be higher than that of MMV. Among the NAA compounds, we identified unique scaffolds that were not contained in any of the other compound datasets. These scaffolds from NAA also possess desirable drug-like properties making them ideal starting points for antimalarial drug design considerations. The Scaffold Tree showed the preponderance of ring systems in NAA and identified virtual scaffolds, which may be potential bioactive compounds.
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37
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Lenci E, Menchi G, Trabocchi A. Carbohydrates in diversity-oriented synthesis: challenges and opportunities. Org Biomol Chem 2016; 14:808-25. [DOI: 10.1039/c5ob02253c] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Carbohydrates are attractive building blocks for diversity-oriented synthesis due to their stereochemical diversity and high density of polar functional groups.
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Affiliation(s)
- E. Lenci
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino
- Italy
| | - G. Menchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino
- Italy
| | - A. Trabocchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino
- Italy
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38
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Yang WL, Tang FF, He FS, Li CY, Yu X, Deng WP. Asymmetric Construction of Spirocyclic Pyrrolidine-thia(oxa)zolidinediones via N,O-Ligand/Cu(I) Catalyzed 1,3-Dipolar Cycloaddition of Azomethine Ylides with 5-Alkylidene Thia(oxa)zolidine-2,4-diones. Org Lett 2015; 17:4822-5. [DOI: 10.1021/acs.orglett.5b02387] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wu-Lin Yang
- School of Pharmacy and Shanghai
Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Fei-Fei Tang
- School of Pharmacy and Shanghai
Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Fu-Sheng He
- School of Pharmacy and Shanghai
Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Chun-Yan Li
- School of Pharmacy and Shanghai
Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Xingxin Yu
- School of Pharmacy and Shanghai
Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai
Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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39
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Cierpicki T, Grembecka J. Targeting protein-protein interactions in hematologic malignancies: still a challenge or a great opportunity for future therapies? Immunol Rev 2015; 263:279-301. [PMID: 25510283 DOI: 10.1111/imr.12244] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Over the past several years, there has been an increasing research effort focused on inhibition of protein-protein interactions (PPIs) to develop novel therapeutic approaches for cancer, including hematologic malignancies. These efforts have led to development of small molecule inhibitors of PPIs, some of which already advanced to the stage of clinical trials while others are at different stages of preclinical optimization, emphasizing PPIs as an emerging and attractive class of drug targets. Here, we review several examples of recently developed inhibitors of PPIs highly relevant to hematologic cancers. We address the existing skepticism about feasibility of targeting PPIs and emphasize potential therapeutic benefit from blocking PPIs in hematologic malignancies. We then use these examples to discuss the approaches for successful identification of PPI inhibitors and provide analysis of the protein-protein interfaces, with the goal to address 'druggability' of new PPIs relevant to hematology. We discuss lessons learned to improve the success of targeting new PPIs and evaluate prospects and limits of the research in this field. We conclude that not all PPIs are equally tractable for blocking by small molecules, and detailed analysis of PPI interfaces is critical for selection of those with the highest chance of success. Together, our analysis uncovers patterns that should help to advance drug discovery in hematologic malignancies by successful targeting of new PPIs.
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Affiliation(s)
- Tomasz Cierpicki
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
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40
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Synthesis, characterization and biological evaluation of Rutin-zinc(II) flavonoid -metal complex. Chem Biol Interact 2015; 239:184-91. [PMID: 26091902 DOI: 10.1016/j.cbi.2015.06.011] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 05/19/2015] [Accepted: 06/05/2015] [Indexed: 10/23/2022]
Abstract
Synthesis of compounds analogous to natural products from secondary metabolites, such as flavonoids, is a promising source of novel drugs. Rutin (quercetin-3-O-rutinoside) is a natural flavone, which has, in its chemical structure, different sites for coordination with transition metals and the complexation with these metals enhances its biological properties. Rutin-zinc(II), a flavonoid-metal complex, was synthesized and characterized by UV-VIS, FT-IR, elemental analysis and (1)H NMR. The antioxidant and antitumor activities, as well as the cytotoxicity and in vivo toxicity of this complex were evaluated and compared with the free rutin. Rutin-zinc(II) has not shown any cytotoxicity against normal cells (fibroblasts and HUVECs) or toxicity in BALB/c mice, but has shown antioxidant activity in vitro and cytotoxicity against leukemia (KG1, K562 and Jurkat), multiple myeloma (RPMI8226) and melanoma (B16F10 and SK-Mel-28) cell lines in vitro. In Ehrlich ascites carcinoma model, Rutin-zinc(II) modulated the mitochondrial membrane potential and the expression of genes related to cell cycle progression, angiogenesis and apoptosis.
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41
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Selection-based discovery of macrocyclic peptides for the next generation therapeutics. Curr Opin Chem Biol 2015; 26:34-41. [DOI: 10.1016/j.cbpa.2015.01.023] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 01/23/2015] [Indexed: 12/27/2022]
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42
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Lenci E, Menchi G, Guarna A, Trabocchi A. Skeletal Diversity from Carbohydrates: Use of Mannose for the Diversity-Oriented Synthesis of Polyhydroxylated Compounds. J Org Chem 2015; 80:2182-91. [DOI: 10.1021/jo502701c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Elena Lenci
- Department
of Chemistry “Ugo
Schiff”, University of Florence, via della Lastruccia 13, I-50019 Sesto Fiorentino, Florence, Italy
| | - Gloria Menchi
- Department
of Chemistry “Ugo
Schiff”, University of Florence, via della Lastruccia 13, I-50019 Sesto Fiorentino, Florence, Italy
| | - Antonio Guarna
- Department
of Chemistry “Ugo
Schiff”, University of Florence, via della Lastruccia 13, I-50019 Sesto Fiorentino, Florence, Italy
| | - Andrea Trabocchi
- Department
of Chemistry “Ugo
Schiff”, University of Florence, via della Lastruccia 13, I-50019 Sesto Fiorentino, Florence, Italy
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43
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Yang WL, Liu YZ, Luo S, Yu X, Fossey JS, Deng WP. The copper-catalyzed asymmetric construction of a dispiropyrrolidine skeleton via 1,3-dipolar cycloaddition of azomethine ylides to α-alkylidene succinimides. Chem Commun (Camb) 2015; 51:9212-5. [DOI: 10.1039/c5cc02362a] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
N,O-Ligand/Cu(OAc)2 catalyzed asymmetric 1,3-dipolar cycloaddition of azomethine ylides to α-alkylidene succinimides is developed, affording dispiropyrrolidines in excellent diastereoselectivities and enantioselectivities.
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Affiliation(s)
- Wu-Lin Yang
- Shanghai Key Laboratory of New Drug Design
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Yang-Zi Liu
- Shanghai Key Laboratory of New Drug Design
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Shuai Luo
- Shanghai Key Laboratory of New Drug Design
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Xingxin Yu
- Shanghai Key Laboratory of New Drug Design
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | | | - Wei-Ping Deng
- Shanghai Key Laboratory of New Drug Design
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
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44
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Bathula C, Dangi P, Hati S, Agarwal R, Munshi P, Singh A, Singh S, Sen S. Diverse synthesis of natural product inspired fused and spiro-heterocyclic scaffolds via ring distortion and ring construction strategies. NEW J CHEM 2015. [DOI: 10.1039/c5nj01858g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A toolkit of indole scaffolds inspired from natural products.
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Affiliation(s)
- Chandramohan Bathula
- Department of Chemistry
- Shiv Nadar University
- Post Office Shiv Nadar University
- Uttar Pradesh 201314
- India
| | - Poonam Dangi
- Department of Life Science
- Shiv Nadar University
- Post Office Shiv Nadar University
- Uttar Pradesh 201314
- India
| | - Santanu Hati
- Department of Chemistry
- Shiv Nadar University
- Post Office Shiv Nadar University
- Uttar Pradesh 201314
- India
| | - Rahul Agarwal
- Department of Life Science
- Shiv Nadar University
- Post Office Shiv Nadar University
- Uttar Pradesh 201314
- India
| | - Parthapratim Munshi
- Department of Chemistry
- Shiv Nadar University
- Post Office Shiv Nadar University
- Uttar Pradesh 201314
- India
| | - Ashutosh Singh
- Department of Life Science
- Shiv Nadar University
- Post Office Shiv Nadar University
- Uttar Pradesh 201314
- India
| | - Shailja Singh
- Department of Life Science
- Shiv Nadar University
- Post Office Shiv Nadar University
- Uttar Pradesh 201314
- India
| | - Subhabrata Sen
- Department of Chemistry
- Shiv Nadar University
- Post Office Shiv Nadar University
- Uttar Pradesh 201314
- India
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45
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Carosso S, Miller MJ. Nitroso Diels-Alder (NDA) reaction as an efficient tool for the functionalization of diene-containing natural products. Org Biomol Chem 2014; 12:7445-68. [PMID: 25119424 PMCID: PMC4161629 DOI: 10.1039/c4ob01033g] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review describes the use of nitroso Diels-Alder reactions for the functionalization of complex diene-containing natural products in order to generate libraries of compounds with potential biological activity. The application of this methodology to the structural modification of a series of natural products (thebaine, steroidal dienes, rapamycin, leucomycin, colchicine, isocolchicine and piperine) is discussed using relevant examples from the literature from 1973 onwards. The biological activity of the resulting compounds is also discussed. Additional comments are provided that evaluate the methodology as a useful tool in organic, bioorganic and medicinal chemistry.
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Affiliation(s)
- Serena Carosso
- Department of Chemistry and Biochemistry, 251 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 46556, USA.
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46
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Tollefson EJ, Dawson DD, Osborne CA, Jarvo ER. Stereospecific cross-coupling reactions of aryl-substituted tetrahydrofurans, tetrahydropyrans, and lactones. J Am Chem Soc 2014; 136:14951-8. [PMID: 25308512 PMCID: PMC4210078 DOI: 10.1021/ja5076426] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The stereospecific ring-opening of O-heterocycles to provide acyclic alcohols and carboxylic acids with controlled formation of a new C-C bond is reported. These reactions provide new methods for synthesis of acyclic polyketide analogs with complex stereochemical arrays. Stereoselective synthesis of the cyclic template is utilized to control relative configuration; subsequent stereospecific nickel-catalyzed ring-opening affords the acyclic product. Aryl-substituted tetrahydrofurans and tetrahydropyrans undergo nickel-catalyzed Kumada-type coupling with a range of Grignard reagents to furnish acyclic alcohols with high diastereoselectivity. Enantioenriched lactones undergo Negishi-type cross-coupling with dimethylzinc to afford enantioenriched carboxylic acids. Application in a two-step enantioselective synthesis of an anti-dyslipidemia agent is demonstrated.
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Affiliation(s)
- Emily J Tollefson
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
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47
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Liu C, Gu Y. Synthesis of Densely Substituted 1,3-Butadienes through Acid-Catalyzed Alkenylations of α-Oxoketene Dithioacetals with Aldehydes. J Org Chem 2014; 79:9619-27. [DOI: 10.1021/jo5017234] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Changhui Liu
- Key
Laboratory for Large-Format Battery Materials and System, Ministry
of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
| | - Yanlong Gu
- Key
Laboratory for Large-Format Battery Materials and System, Ministry
of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Lanzhou 730000, People’s Republic of China
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48
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Parra A, Martin-Fonseca S, Rivas F, Reyes-Zurita FJ, Medina-O’Donnell M, Rufino-Palomares EE, Martinez A, Garcia-Granados A, Lupiañez JA, Albericio F. Solid-phase library synthesis of bi-functional derivatives of oleanolic and maslinic acids and their cytotoxicity on three cancer cell lines. ACS COMBINATORIAL SCIENCE 2014; 16:428-47. [PMID: 24916186 DOI: 10.1021/co500051z] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A wide set of 264 compounds has been semisynthesized with high yields and purities. These compounds have been obtained through easy synthetic processes based on a solid-phase combinatorial methodology. All the members of this library have one central core of a natural pentacyclic triterpene (oleanolic or maslinic acid) and differ by 6 amino acids, coupled with the carboxyl group at C-28 of the triterpenoid skeleton, and by 10 different acyl groups attached to the hydroxyl groups of the A-ring of these molecules. According to the literature on the outstanding and promising pharmacological activities of other similar terpene derivatives, some of these compounds have been tested for their cytotoxic effects on the proliferation of three cancer cell lines: B16-F10, HT29, and Hep G2. In general, we have found that around 70% of the compounds tested show cytotoxicity in all three of the cell lines selected; around 60% of the cytotoxic compounds are more effective than their corresponding precursors, that is, oleanolic (OA) or maslinic (MA) acids; and nearly 50% of the cytotoxic derivatives have IC50 values between 2- to 320-fold lower than their corresponding precursor (OA or MA).
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Affiliation(s)
- Andres Parra
- Departamento
de Quimica Organica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Samuel Martin-Fonseca
- Departamento
de Quimica Organica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Francisco Rivas
- Departamento
de Quimica Organica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Fernando J. Reyes-Zurita
- Departamento
de Bioquimica y Biologia Molecular I, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Marta Medina-O’Donnell
- Departamento
de Quimica Organica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Eva E. Rufino-Palomares
- Departamento
de Bioquimica y Biologia Molecular I, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Antonio Martinez
- Departamento
de Quimica Organica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Andres Garcia-Granados
- Departamento
de Quimica Organica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Jose A. Lupiañez
- Departamento
de Bioquimica y Biologia Molecular I, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Fernando Albericio
- Institut for Research in Biomedicine and CIBER BBN, Baldiri Reixac 10, 08028 Barcelona, Spain
- School
of Chemistry and Physics, University of KwaZulu-Natal, 4001 Durban, South Africa
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Wang Y, Bauer JO, Strohmann C, Kumar K. A Bioinspired Catalytic Oxygenase Cascade to Generate Complex Oxindoles. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403415] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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50
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Wang Y, Bauer JO, Strohmann C, Kumar K. A Bioinspired Catalytic Oxygenase Cascade to Generate Complex Oxindoles. Angew Chem Int Ed Engl 2014; 53:7514-8. [DOI: 10.1002/anie.201403415] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 04/08/2014] [Indexed: 12/26/2022]
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